Author Topic: LL USRA 0-8-0 factoid  (Read 1526 times)

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Mark5

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LL USRA 0-8-0 factoid
« on: December 05, 2007, 04:45:28 PM »
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When reports of the LL 0-8-0s shipping with 3 pole motors came out I contacted Walthers as I have one on order from the 2nd run. The press releases/info on the site indicated 5 pole skew etc motor.

I finally got a response from them - the copy was wrong - it was designed to have a 3 pole motor. ::)

I assume (based on feedback) that it was geared to take this into account, and is able to move slowly (ie one tie at a time).




up1950s

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Re: LL USRA 0-8-0 factoid
« Reply #1 on: December 05, 2007, 05:31:24 PM »
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Max says it runs smoothly at about 10SMP , below that it is not as smooth . My guess is if you have a cut in tow , and you are putting out more amps , it might go smoothly at a lesser speed . Maybe yes , maybe no .

Mark5

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Re: LL USRA 0-8-0 factoid
« Reply #2 on: December 05, 2007, 05:55:42 PM »
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Heh, I hope this doesn't mean another re-motor project for me ...  >:(  Frankly it seems a bit retarded that any self-respecting manufacturer would release locos that can't operate prototypically at low speeds in this "day and age".

I get the impression sometimes that most N scalers come into this hobby direct from the NHRA ...

« Last Edit: December 05, 2007, 06:00:02 PM by NandW »

Chris333

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Re: LL USRA 0-8-0 factoid
« Reply #3 on: December 05, 2007, 07:28:25 PM »
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At least they finally changed the descriptions on their website.

I think the excuse is BS, but oh well.

Mark5

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Re: LL USRA 0-8-0 factoid
« Reply #4 on: December 07, 2007, 12:06:06 PM »
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At least they finally changed the descriptions on their website.

I think the excuse is BS, but oh well.

BS indeed.

I'm thinking about converting this beast to DC only ... I don't see myself consisting it.

Mark

Chulvis

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Re: LL USRA 0-8-0 factoid
« Reply #5 on: December 09, 2007, 11:00:49 PM »
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I think I've had enough of the 0-8-0's. I have and will test all that come in, fill my orders, other than that I am over and out with these. Has been nothing but a pain in the a_s_s.

I'm done.



Mark5

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Re: LL USRA 0-8-0 factoid
« Reply #6 on: December 12, 2007, 11:52:52 AM »
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On the bright side Max on the A-forum seems to have an easy cure for the lack of traction (where applicable).

here's the email I sent back to them:

Please pass this along to whoever made the decision to
put a 3 pole motor in the N SCALE USRA 0-8-0:

Three pole motors (no matter how they are skewed) do
not perform well at low speeds. This is why most
manufacturers long ago adopted 5 pole motors. In
certain particularly tiny locos I can see where one
might be tempted to go with a 3 pole motor, but in the
long run you will alienate customers by doing this.

The USRA 0-8-0 is a switcher and spent most of its
working life at .... slow speed. Therefore slow speed
performance is essential. I fear that my stepped
undecorated USRA 0-8-0 (N SCALE) will not be able to
perform as intended with a 3 pole motor, and I will be
forced to swap a suitable 5 pole motor into it.

If so, this will be a tremendous discouragement to me
with regard to buying any further Walthers N scale
steam locomotives.

Thanks for listening (I hope you're listening).

Sincerely,

Mark Peele